0b90fd5adf
As both C and C++ standards require applications running under an OS to
return 'int', adapt that for Zephyr to align with those standard. This also
eliminates errors when building with clang when not using -ffreestanding,
and reduces the need for compiler flags to silence warnings for both clang
and gcc.
Most of these changes were automated using coccinelle with the following
script:
@@
@@
- void
+ int
main(...) {
...
- return;
+ return 0;
...
}
Approximately 40 files had to be edited by hand as coccinelle was unable to
fix them.
Signed-off-by: Keith Packard <keithp@keithp.com>
124 lines
2.4 KiB
C
124 lines
2.4 KiB
C
/* main.c - Application main entry point */
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/*
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* Copyright (c) 2019 Aaron Tsui <aaron.tsui@outlook.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/types.h>
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#include <stddef.h>
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#include <string.h>
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#include <errno.h>
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#include <zephyr/sys/printk.h>
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#include <zephyr/sys/byteorder.h>
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#include <zephyr/kernel.h>
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#include <zephyr/bluetooth/bluetooth.h>
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#include <zephyr/bluetooth/hci.h>
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#include <zephyr/bluetooth/conn.h>
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#include <zephyr/bluetooth/uuid.h>
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#include <zephyr/bluetooth/gatt.h>
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#include <zephyr/bluetooth/services/bas.h>
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#include "hts.h"
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static const struct bt_data ad[] = {
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BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
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BT_DATA_BYTES(BT_DATA_UUID16_ALL,
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BT_UUID_16_ENCODE(BT_UUID_HTS_VAL),
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BT_UUID_16_ENCODE(BT_UUID_DIS_VAL),
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BT_UUID_16_ENCODE(BT_UUID_BAS_VAL)),
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};
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static void connected(struct bt_conn *conn, uint8_t err)
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{
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if (err) {
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printk("Connection failed (err 0x%02x)\n", err);
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} else {
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printk("Connected\n");
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}
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}
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static void disconnected(struct bt_conn *conn, uint8_t reason)
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{
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printk("Disconnected (reason 0x%02x)\n", reason);
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}
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BT_CONN_CB_DEFINE(conn_callbacks) = {
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.connected = connected,
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.disconnected = disconnected,
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};
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static void bt_ready(void)
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{
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int err;
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printk("Bluetooth initialized\n");
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hts_init();
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err = bt_le_adv_start(BT_LE_ADV_CONN_NAME, ad, ARRAY_SIZE(ad), NULL, 0);
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if (err) {
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printk("Advertising failed to start (err %d)\n", err);
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return;
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}
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printk("Advertising successfully started\n");
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}
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static void auth_cancel(struct bt_conn *conn)
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{
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char addr[BT_ADDR_LE_STR_LEN];
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bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr));
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printk("Pairing cancelled: %s\n", addr);
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}
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static struct bt_conn_auth_cb auth_cb_display = {
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.cancel = auth_cancel,
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};
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static void bas_notify(void)
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{
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uint8_t battery_level = bt_bas_get_battery_level();
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battery_level--;
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if (!battery_level) {
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battery_level = 100U;
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}
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bt_bas_set_battery_level(battery_level);
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}
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int main(void)
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{
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int err;
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err = bt_enable(NULL);
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if (err) {
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printk("Bluetooth init failed (err %d)\n", err);
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return 0;
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}
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bt_ready();
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bt_conn_auth_cb_register(&auth_cb_display);
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/* Implement indicate. At the moment there is no suitable way
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* of starting delayed work so we do it here
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*/
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while (1) {
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k_sleep(K_SECONDS(1));
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/* Temperature measurements simulation */
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hts_indicate();
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/* Battery level simulation */
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bas_notify();
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}
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return 0;
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}
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